diff --git a/src/video/cocoa/SDL_cocoamessagebox.m b/src/video/cocoa/SDL_cocoamessagebox.m
index 2de717adb..a8d8943a6 100644
--- a/src/video/cocoa/SDL_cocoamessagebox.m
+++ b/src/video/cocoa/SDL_cocoamessagebox.m
@@ -32,8 +32,7 @@
     NSInteger clicked;
     NSWindow *nswindow;
 }
-- (id) initWithParentWindow:(SDL_Window *)window;
-- (void) alertDidEnd:(NSAlert *)alert returnCode:(NSInteger)returnCode contextInfo:(void *)contextInfo;
+- (id)initWithParentWindow:(SDL_Window *)window;
 @end
 
 @implementation SDLMessageBoxPresenter
@@ -57,35 +56,16 @@
 - (void)showAlert:(NSAlert*)alert
 {
     if (nswindow) {
-#ifdef MAC_OS_X_VERSION_10_9
-        if ([alert respondsToSelector:@selector(beginSheetModalForWindow:completionHandler:)]) {
-            [alert beginSheetModalForWindow:nswindow completionHandler:^(NSModalResponse returnCode) {
-                self->clicked = returnCode;
-            }];
-        } else
-#endif
-        {
-#if MAC_OS_X_VERSION_MIN_REQUIRED < 1090
-            [alert beginSheetModalForWindow:nswindow modalDelegate:self didEndSelector:@selector(alertDidEnd:returnCode:contextInfo:) contextInfo:nil];
-#endif
-        }
-
-        while (clicked < 0) {
-            SDL_PumpEvents();
-            SDL_Delay(100);
-        }
-
+        [alert beginSheetModalForWindow:nswindow
+                      completionHandler:^(NSModalResponse returnCode) {
+                        [NSApp stopModalWithCode:returnCode];
+                      }];
+        clicked = [NSApp runModalForWindow:nswindow];
         nswindow = nil;
     } else {
         clicked = [alert runModal];
     }
 }
-
-- (void) alertDidEnd:(NSAlert *)alert returnCode:(NSInteger)returnCode contextInfo:(void *)contextInfo
-{
-    clicked = returnCode;
-}
-
 @end